既然是球队名,我建议你译为Team King。“班级足球队”应该是注解吧,那就译的具体一点,比如你们是1班,可译为Soccer Team of Class 1
楼上两位的翻译不太地道可以这样说EAMIY OF KINGTHE TEAM OF CLASS
King's ArmyClass Football Team
King TeamFootball Class Team